Rotary engine or pump.



J. NIELSBN.

ROTARY ENGINE 0R PUMP.

` APPLICATION HLBD 1320.17, 1912. l, l 05,449,

ll n J. NIELSEN.

ROTARY ENGINE ORIPUMP.

APPLICATION FILED DEO. 17, 1912.

1,1 05,449, Patented July 28, 1914.

The I wlmfssfs.- ma W J. NIELSEN.

ROTARY ENGINE OR PUMP.

APPLICATION FILED DEC.17.1912. 1,1 05,449, Patented July 28, 1914.

' SSHBETSSHELT a.

54 Elma.. E j

t/LQ. A Tron/vir J ENS NIELSEN, OF CEDARFALLS, IOWA.

ROTARY ENGINE 0R.' PUMP.

Specification of Letters Pate-nt.

Patented July 28, 1914.

Application led December 17, 1912. Serial No. 737,347.

To alt who/m, it 'may concern: I Be it known that I, JnNs NInLsEN, ac1t1- zen of the United States, residing at Cedar Falls, in the countyof Blackhawk and State of Iowa, have invented certain new and usefulImprovements in Rotary Engines lor Pumps, of which the following is aspecification. l

This invention has relation to rotary engines or pumps especiallyadapted to be positioned vertically when in operation although themachine may be placed in other positions if desired.

An object of the invention is to prov1de an engine or pump comprising acasing with a single rotor mounted therein, the arts being so arrangedthat the weight o the water from above and the resistance of the waterfrom below will have a tendency to counterbalance the rotor in itslposition in the casing whereby thel tendency to longitudinal movement onthe part of the rotor is eliminated.

Another object of the invention is to provide an engine or pumpcomprising a casing having openings at its upper and lower ends andprovided upon its inner side with teethA of peculiar conliguration. Arotor is journaled in the casing and is prov1ded with a pocket in whichis journaled a piston having teeth of peculiar configuration whichu meshwith the teeth provided upon the casing. A cylinder surrounds the casingand is spaced from the same, and communicates with the openings at thelower end of the casing. This space between the cylinder andthe casingconstitutes a fluid passage.- way. Plates are fixed to theends of therotor and fit snugly in the end portions of the casing. These plates areprovided with ports which communicate at thelr inner endsv with thepocket in the rotor. These ports are out of alinement with each otherlongitudinal of the piston and one port is located at one sideof theaxis of the piston while the other port is located Iat the opposite sideof the axis ofthe piston. A headis pro vided at one end of the casingand is fixed with relation to the casing and supports .a ring whichengages the cylinder. A pipe 1s connectedat one end with the ring andsurrounds a shaft which is adapted to operate the rotor.,

With these and other objects in view, the invention consists in certainnovel features of'V construction as 'hereinafter shown and described,and then particularly pointed out in the claims and in the drawingsillustrative of the preferred embodiment of the invention, Figure 1 is avertical sectional view of the engine or pump. Fig. 2 is a transversesectional View of the same cut on the line 2 2 of Fig. 1. Fig. 3 is asimilar view cut on the line 3 3 ofFig. 1. Fig. 4 is a similar view euton the line 4-4 of Fig. 1. Fig. 5 is a similar View cut on the line 5--5of Fig. 1.` Fig. 6 is a similar view cut on the line 6--6 of Fig.1.

Correspondin and like parts are referred to in the ollowing descriptionand indicated in all'the views of the accompanytijng drawings by thesame reference characers.

The engine or pump comprises a cylindrical 'casing l which is providedupon its inner side with teeth 2. These teeth are of greatesttransverse'thickness at their bases or roots and `gradually diminish intransverse thickness toward their inner ends as best shown in F ig. 2 ofthe drawing. The inner lside of the casing 1 at the bottoms of thespaces between the teeth 2 is provided with concavities 3 which extendvthe full length of the teeth 2.

The casing l'is provided at its upper end portion with openings 4 and atits lower end portion with openings 5. These openings may be of anydesired number or any appropriate shape or configuration.

A shaft enters the upper portion `of the casing 1 and is providedl atits lower end with a plate 7 which in turn is provided with a poi-t8, arotor 9 is fixed to the plate 7 and is provided with a peripheral pocket10. A plate l1 is secured to the lower end of the rotor 9 and is`provided with a port 12. The ports'V 8 and 12 communicate at theirinner ends with the pocket 10 but the said ports are out of alinementlwith. each other longitudinal of the pocket. The plates 7 and l'l arepreferably held in position with relation to the rotor 9 by means ofbolts 13.A A shaftlfl is supported at its ends in the plates 7 and 1land traverse the length of the pocket l0. The said shaft 1-1 iscentrally positioned with relation to the pocket. A piston 15 isjournaled upon the shaft lll'. and is provided with peripheral teethl.These teeth are less in transverse thickness near their inner ends thanat their 3&5

outer ends `asbest shown in lig. 2 of the drawing and 'the teeth 16 areadapted to mesh with the teeth 2 in the easing1 l. The port 8 in theplate 7 is located at one side of the afgis of the shaft 1d whildtheport l2' in the plate 1l is lccat`ed-atthe'opposite side of/"i'e'saidfairis i The plate l1 is journaleo upon apin 17 which is supportedin the head 18. IThe head 13 is provided upon its upper i head 21 ismounted upon the upper end of the casing 1 and the shaft 6 is journaled.in the said'liead The openings 4E are located between 4the head 21 and.the plates 7 as best shown in Fig. nected to the upper end of thecylinder 2li and its inner side is spaced irdm the outer or upper sideel? the head 21. AL pipe 23 is connected at its lower end with the ring22 and surrounds the shaft 6 and is spaced from the same, Screws 2l passthrough the ring 2 2 and also pass through the head el and enter theupper end portion of the casing 1. Bushings 25 are locatedupon theintermediate portions of the said screwsQd and serve as means forholding the ring 22 in proper spaced relation from the head 2l..

ln operation the casing Q is wholly sub-v merged below the surface ofthe liquid which is to be operated upon. -When the shaft is rotated inone direction the rotor 9 is carried around with the same andthe liquidflows into 'the casing 1 through the openings fl. The liquid then flowsdown through the port 8 in the plate I and is encountered by the teeth16 of the rotor L5 and is forced in a downward direction through theport 12 in the plate. Thence the liquid is forced out of the casing 1through the openings' and up through the space be tween the cylinderY20# and thev casing 1, thence through the space between the ring 22 andthe head 2 1 and then up through the pipe 23.

ln view of the fact that the 'casing 1 is provided at, its inner sideand at the bot toms orn the spaces betweenthe teeth 2 with theconcavities 3, the said concavities will receive a certain amount oftheliquid when the teeth 16 encounter the-,teeth 2. This is just suiligient to prevent this liquid Jfrom being trapped between theintermeshing vteeth and thus thepumpwill operate in a noiseless mannerand the knocking or 'pounding due towhatis generally termed a waterhammerisgavoided. ln forcing the `water downthrough the casing, theweight of the water pushing the rotor in an upward il ring 22 is ooi,

direction will counterbalance the wei the rotor and the parts tonwhichit is attachedandawhich are ycarried by the same.

lt will be readily` appreciated that in the construction of the.machine,` the lvarious parts shown and described as integral may be madein separate sections and joined tothe casing dowii' and in throughopenings 5' eo i under the rotor,-wup through rotor and cas-j ing andout atopenings 'el A head in which `the shaft is journaled 'A yandpacked, may be supposed to close the pipe up. above and a` sui-tableinlet provided into the pipe below lSaid head for the iiuid to enter.the pipe. s f

Having described'the ,invention what is claimed, is

1. A pump comprising a'casing, a rotor journaled in the'casing andincluding spaced plateshaving ports, a cylinder surrounding the casingand spaced from' the same, a head located at one end of the cylinder andclosing the` same and spaced' from the adjacent ported plate,y saidcasing having a liquid passage-wayleading into the cylinderand locatedbetween the last mentioned plate and head. i

2.1i pump comprising acasing, arotor journaled in the casing, a cylindersurround ing the casing and spaced' from the 'same'and closed at oneend, said j casing havingfpassageways located b elowWthe rotors whichcommunicate with the interior ot`- the 'cyl in der, said cylinder beinglprovided with an outlet located above the rotor and having a portleading throughits side into the casing vat a point above the rotor.

3.A pump comprising a casing provided upon its inner side with teeth, arotor jour* naled in the casing, a piston journaled in the rotor andhaving peripheral teeth adapted to mesh with the teeth in the casing,the spaces between the teeth in the casing being deeper radially thanthe lengths of the teeth upon the piston.

4. A pump comprising a casing provided upon its periphery withinteriorly arranged teeth, and at its opposite ends with counterbores,rotatable plates having slightly greater diameters than the innerdiameter of the casing and rotatably mounted in the counterbores andhaving ports formed adjacent their peripheries with their outer wallsush with the inner periphery-of the casing, a rotor arranged between theplates and connected therewith, a rotatable toothed'aifston arrangedbetween the rotatable pl connected therewith to coperat ioo iio

and.-

teeth of the casing, a cylinder surrounding the casing in spacedrelation to form a passage employed solely for the discharge of the'liquid in an upward direction, and a member 'arranged in the upper endof the casing for closing the upper end thereof above the upper plate. A

5. A pump, comprisin a casing, rotatable plates mounted within t eopposite ends of the casing, and provided adjacent their peripherieswith ports having their outer walls flush with the inner periphery ofthe casing, a rotor arranged between the plates and connected therewith,a rotatable piston arranged to one side of the rotor and connected withthe plates, a cylinder surrounding' the'casing in spaced relation toprovidean outlet passage for the liquid, and means arranged` adjacentthe upper end of the casing to separate the same from the outletpassage.

6. A pump comprising a substantially vertical casingprovided withinteriorly arranged teeth, rotatable plates arranged within the casingnear the upper and lower ends thereof7 a rotor arranged between theplates and connected therewith, a relatively rotatablepiston providedwith teeth to engage with the casing teeth and adapted to force a liquiddownwardly continuously, said rotatable plates being provided withports, and a cylinder surrounding the casing in spaced relation toprovide a liquid outlet passage through which the discharge liquidpasses continuously in an upwardly direction.

7. A pump of the character described comprising a substantially verticalcasing provided with interiorly arranged teeth, plates rotatably mountedwithin the opposite end portions of the casing and extendin radiallybeyond thebases of the teeth an having ports with their outer wallssubstantially flush with the inner periphery of the casing, a rotor'mounted between the plates and connected therewith, and a rotatabletoothed piston vrotatably mounted between the plates to coperate withthe casing teeth.

8. A pump of the character described, comprising a substantiallyvertical casing provided with internally arranged teeth,

plates rotatably mounted within the opposite ends of the casing and'extending radially outwardly beyond the bases of the teeth, and havinports with their outer walls ar- -ranged su ,stantially' flush with theinner periphery of the casing, a rotor mounted between the plates, rodsextending through the two plates for radially 'connecting .the rotortherewith, a toothed rotatable piston arranged between the plates uponone side of the rotor to coperate with the casing teeth, and a shaftcarrying the rotatable piston with its opposite ends journaled throughthe two plates. s

9. A pump of the character described comprising an upstanding casingrovided with interioily arranged teeth w ich decrease toward their freeends, plates rotatably mounted in the opposite ends of the casing andextending radially outwardly be youd the base of the teeth and havingports with their'outer walls substantially` dush with the innerperiphery of the casing, a rotatable piston arranged between and carriedby the plates and having teeth to coperate with the casing teeth whichincrease in width outwardly, a rotor arranged to one side of therotatable piston and connnected with the plates, and a cylindersurrounding the casing in spaced relation thereto.

10. A pump of the character described, comprising an upstanding casing,rotatable plates mounted in the opposite ends thereof and provided withorts having their outer walls substantially ush with the inner surfaceof the casing, said ports being out of longitudinal alinement with eachother, a rotatable piston mounted between the plates and carriedthereby, a rotor mounted between the plates, carried thereby, andarranged upon one side of the piston, and a cylinder surrounding thecasing in spaced relation thereto.

In testimony whereof I affix my signature in presence of two witnesses.

A. MJPARKINS, R. L. CowLus.

